*{
    margin: 0;
    padding: 0;
}
.w{
    width: 20rem;
    height: 100%;
    margin: 0 auto;
    display: flex;
}
span
{
    text-align: center;
    height: 100%;
}
section{
    width: 60rem;
    height: 30rem;
    background-color: pink;
    display: flex;
    margin: 5rem auto;
}

.left{
    width: 60%;
    height: 100%;
    background-color: blue;
}
.right{
    width: 40%;
    height: 100%;
    background-color: skyblue;
}

.top{
    margin-top: 4rem;
    width: 100%;
    height: 4rem;
    font-size: 20px;
    line-height: 4rem;
    text-align: center;
    font-weight: 700;
}

.center{
    width: 100%;
    height: 8rem;
    display: flex;
    line-height: 8rem;
    text-align: center;
    font-weight: 700;
    padding-left: 5rem;
}

.down{
    margin-top: 2rem;
    width: 100%;
    height: 5rem;
    line-height: 5rem;
    text-align: center;
    display: flex;
}

#hours{
    
    width: 5rem;
    height: 5rem;
    line-height: 5rem;
    text-align: center;
    background-color: grey;
    font-size: 60px;
}

#minutes{
    
    width: 5rem;
    height: 5rem;
    line-height: 5rem;
    text-align: center;
    background-color: grey;
    font-size: 60px;
}

#seconds{
    
    width: 5rem;
    height: 5rem;
    line-height: 5rem;
    text-align: center;
    background-color: grey;
    font-size: 60px;
}

#days{
    font-size: 100px;
    color: red;
}